package idv.loveloser.dao;

import java.util.List;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A data access object (DAO) providing persistence and search support for
 * MdlQuizOverviewRegrades entities. Transaction control of the save(), update()
 * and delete() operations can directly support Spring container-managed
 * transactions or they can be augmented to handle user-managed Spring
 * transactions. Each of these methods provides additional information for how
 * to configure it for the desired type of transaction control.
 * 
 * @see idv.loveloser.dao.MdlQuizOverviewRegrades
 * @author MyEclipse Persistence Tools
 */

public class MdlQuizOverviewRegradesDAO extends BaseHibernateDAO {
	private static final Logger log = LoggerFactory
			.getLogger(MdlQuizOverviewRegradesDAO.class);
	// property constants
	public static final String QUESTIONUSAGEID = "questionusageid";
	public static final String SLOT = "slot";
	public static final String NEWFRACTION = "newfraction";
	public static final String OLDFRACTION = "oldfraction";
	public static final String REGRADED = "regraded";
	public static final String TIMEMODIFIED = "timemodified";

	public void save(MdlQuizOverviewRegrades transientInstance) {
		log.debug("saving MdlQuizOverviewRegrades instance");
		try {
			getSession().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(MdlQuizOverviewRegrades persistentInstance) {
		log.debug("deleting MdlQuizOverviewRegrades instance");
		try {
			getSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public MdlQuizOverviewRegrades findById(java.lang.Long id) {
		log.debug("getting MdlQuizOverviewRegrades instance with id: " + id);
		try {
			MdlQuizOverviewRegrades instance = (MdlQuizOverviewRegrades) getSession()
					.get("idv.loveloser.dao.MdlQuizOverviewRegrades", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(MdlQuizOverviewRegrades instance) {
		log.debug("finding MdlQuizOverviewRegrades instance by example");
		try {
			List results = getSession()
					.createCriteria("idv.loveloser.dao.MdlQuizOverviewRegrades")
					.add(Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding MdlQuizOverviewRegrades instance with property: "
				+ propertyName + ", value: " + value);
		try {
			String queryString = "from MdlQuizOverviewRegrades as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByQuestionusageid(Object questionusageid) {
		return findByProperty(QUESTIONUSAGEID, questionusageid);
	}

	public List findBySlot(Object slot) {
		return findByProperty(SLOT, slot);
	}

	public List findByNewfraction(Object newfraction) {
		return findByProperty(NEWFRACTION, newfraction);
	}

	public List findByOldfraction(Object oldfraction) {
		return findByProperty(OLDFRACTION, oldfraction);
	}

	public List findByRegraded(Object regraded) {
		return findByProperty(REGRADED, regraded);
	}

	public List findByTimemodified(Object timemodified) {
		return findByProperty(TIMEMODIFIED, timemodified);
	}

	public List findAll() {
		log.debug("finding all MdlQuizOverviewRegrades instances");
		try {
			String queryString = "from MdlQuizOverviewRegrades";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public MdlQuizOverviewRegrades merge(
			MdlQuizOverviewRegrades detachedInstance) {
		log.debug("merging MdlQuizOverviewRegrades instance");
		try {
			MdlQuizOverviewRegrades result = (MdlQuizOverviewRegrades) getSession()
					.merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(MdlQuizOverviewRegrades instance) {
		log.debug("attaching dirty MdlQuizOverviewRegrades instance");
		try {
			getSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(MdlQuizOverviewRegrades instance) {
		log.debug("attaching clean MdlQuizOverviewRegrades instance");
		try {
			getSession().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}